Free Excretory Products And Their Elimination (Daily Quiz: 19) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which segment helps in the pH maintenance of body fluid?

(a) DCT

(b) PCT

(c) Collecting duct

(d) All

Question-2

Which of the following is totally reabsorbed in renal tubules?

(a) K

(b) Na

(c) $H_{2}O$

(d) $C_{6}H_{12}O_{6}$

Question-3

Human urine is usually acidic because

(a) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries.

(b) potassium and sodium exchange generates acidity

(c) hydrogen ions are actively secreted into the filtrate

(d) excreted plasma proteins are acidic.

Question-4

The following substances are the excretory products in animals. Choose the least toxic form among them.

(a) Uric acid

(b) Urea

(c) Ammonia

(d) Carbon dioxide

Question-5

Nitrogenous waste products are eliminated mainly as

(a) urea in both tadpole and adult frog

(b) urea in tadpole and ammonia in adult frog

(c) ammonia in tadpole and urea in adult frog

(d) urea in tadpole and uric acid in adult frog